F(x)=2x+2 when x=-1 a. 3 b. 4 c. -4 d. 0

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3